Color and pattern male

Plumage: basicly similar to gold-partridge; feathers with cuckoo pattern dark-grey, three or four times crosswise interrupted by a light-grey slightly arched bar which is not sharply defined; in male ornamental feathers the number of crosswise bars is larger in proportion to the length the bars tends towards an inverted V; males are allowed in either purebred or impurebred where the difference is that the appearance of the purebred is clearly lighter than the female an the impurebred is similar to the female.

Head: orange-red.

Neck and saddle: hackle orange, each feather with a cuckoo pattern shaft-stripe, no high demands on the sharpness and the intensity; front of the neck similar to the breast; saddle-hackle has more or less distinct shaft-stripe, absence is not considered a fault.

Back, shoulders and wing-arch: carmine-red, some cuckoo pattern visible.

Wings: bow and wing-bar cuckoo pattern.

Primary-flights: cuckoo pattern with a narrow brown edge along the outer vane.

Secondary-flights: inner-vane cuckoo pattern, outer-vane brown, forming a brown wing-triangle when the wing is closed.

Tail and breast: cuckoo pattern.

Thighs, belly and rear-part: grey.

Down: grey.                                                                                        

Serious faults

Complete off-color feathers. White in wing-flights and sickles or large steering-feathers.  Excessive brown in the breast, thighs and belly. Straw-yellow in the lower part of the neck-hackle. Too little cuckoo pattern in wings, tail and breast of impurebred.

Faults

Serious faults to a lesser degree Minor deviations in color and pattern. Incomplete colored wing-triangle. Insufficient contrast between the light- and dark-grey bars in tail and wing-flights. Entirely black feathers.

 

 

Plumage: basicly similar to multiple laced gold-partridge but all black, orange, crimson, and brown areas are regularly marked across the feather with V-shaped, lighter-colored bands that lack sharp definition.

Neck: hackle features a banded shaft stripe, though strict requirements regarding the sharpness of the definition or the intensity of the stripe are not applied; the shaft stripe tapers to a point near the tip of the feather.

Saddle: hackle displays shaft-stripe markings of varying distinctness; absence of markings is not considered a fault.

Some cuckoo-style barring is also visible on the back, shoulders, and wing triangle

The barred pattern can occur in either the homozygous or heterozygous state. In a homozygous rooster, the lighter bars are a clear greyish-white and distinctly wider than the dark grey bars; the overall impression is light in color. In a heterozygous rooster, the lighter bars are greyish-white and distinctly narrower than the dark grey bars; the overall impression matches the color and pattern of the hen. Both pattern variants are permitted.

Serious faults

Homozygous: sickle feathers and/or large flight feathers predominantly white; feathers of completely incorrect color.

Heterozygous: white in tail and/or wings; insufficient cuckoo barring in wings, tail, and breast; feathers of completely incorrect color;

For both homozygous and heterozygous: excessive brown in breast, belly and thighs; straw-yellow in the lower part of the neck hackle.

Faults

Serious faults to a lesser degree. Ground-color in the neck too light. Incomplete colored wing triangle.

 

Color and pattern female

The hen’s base color and pattern are similar to those of the Partridge variety (color code 2). Each feather of the neck hackle features a banded shaft stripe. No strict requirements are imposed regarding the sharpness of the markings or the intensity of the shaft stripe/banding. The shaft stripe runs parallel to the feather edge, tapering to a point near the tip of the feather. The shoulders, wing coverts, wing bar, back, saddle, and tail coverts exhibit a "clouded" appearance—that is, grey-brown with black peppering, interspersed with transverse bands that are lighter than the ground color and free of peppering. The clouded areas and the peppered ground color blend smoothly into one another.

Primary flight feathers: black-brown and crossed by bands that are slightly lighter in color. The transition between the lighter and darker bands is gradual.

Secondary flight feathers: outer web brownish-grey with black speckling, crossed at intervals by lighter clouding where no speckling is visible. The lighter and darker bands blend smoothly into one another. Inner web black-brown and crossed by bands that are slightly lighter in color. The transition between the lighter and darker bands is gradual.

Tail feathers: black-brown and crossed by bands that are slightly lighter in color. The transition between the lighter and darker bands is gradual.

The breast is salmon-colored, as uniform as possible.

Serious faults

Absence of cuckoo barring in the neck hackle.  Absence of peppering on the shoulders.  Excessively light shafting. Very coarse or clumped peppering. Pronounced cuckoo barring on the breast. Breast color too pale. Insufficient cuckoo barring in  wings and tail. Excessive contrast in the cuckoo pattern (clouding) on ​​the shoulders, wing coverts, wing bar, back, saddle, and tail coverts. Entirely white feather sections in the wings of young birds.

Faults

Serious faults to a lesser degree. Ground-color in the neck too light.

 

 

Genetic code: https://kippenjungle.nl/Overzicht.htm

Website from Henk Meijers with all available information regarding chicken genetics including the world famous: 

Chicken Color Calculator